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| author | Stefan Roese <sr@denx.de> | 2008-11-20 11:46:20 +0100 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2008-11-20 11:48:53 +0100 |
| commit | 25fb4eaaeab3f8866020818f4729d990dcc91cf0 (patch) | |
| tree | b9d9c691919466ea7005444a919759231fe47c05 | |
| parent | 9b827cf1720acda2473afa516956eab6f7cca9a1 (diff) | |
| download | u-boot-imx-25fb4eaaeab3f8866020818f4729d990dcc91cf0.zip u-boot-imx-25fb4eaaeab3f8866020818f4729d990dcc91cf0.tar.gz u-boot-imx-25fb4eaaeab3f8866020818f4729d990dcc91cf0.tar.bz2 | |
ppc4xx: Clear all potentially pending exceptions in MCSR
This is needed on Canyonlands which still has an exception pending
while running relocate_code(). This leads to a failure after trap_init()
is moved to the top of board_init_r().
Signed-off-by: Stefan Roese <sr@denx.de>
| -rw-r--r-- | cpu/ppc4xx/start.S | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/cpu/ppc4xx/start.S b/cpu/ppc4xx/start.S index 882ef21..84d7a28 100644 --- a/cpu/ppc4xx/start.S +++ b/cpu/ppc4xx/start.S @@ -1440,6 +1440,10 @@ relocate_code: dccci 0,0 /* Invalidate data cache, now no longer our stack */ sync isync + + /* Clear all potential pending exceptions */ + mfspr r1,mcsr + mtspr mcsr,r1 #ifdef CONFIG_SYS_TLB_FOR_BOOT_FLASH addi r1,r0,CONFIG_SYS_TLB_FOR_BOOT_FLASH /* Use defined TLB */ #else |